view sdl-config.in @ 1543:98f9b16f565c

From: "Alex Volkov" Date: Thu, 10 Nov 2005 21:53:40 -0500 Subject: [SDL] BUG[?]: 32bpp RGBA->RGB colorkey blit, no SDL_SRCALPHA It seems there is either a documentation vs. reality mismatch or a real bug in SDL_blit_N.c:BlitNtoNKey(). The exact blit in question is a 32bpp RGBA->RGB, where RGBA has SDL_COLORKEY and *no* SDL_SRCALPHA flags. The doc in SDL_video.h states: * RGBA->RGB: * SDL_SRCALPHA not set: * copy RGB. * if SDL_SRCCOLORKEY set, only copy the pixels matching the * RGB values of the source colour key, ignoring alpha in the * comparison. BlitNtoNKey(), however, forgets to "ignore alpha in the comparison". The documentation makes perfect sense, so I think it is the code that is faulty. The attached patch corrects the code.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 15 Mar 2006 15:43:15 +0000
parents 19418e4422cb
children a77c022733fe
line wrap: on
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#!/bin/sh

prefix=@prefix@
exec_prefix=@exec_prefix@
exec_prefix_set=no

usage="\
Usage: sdl-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--cflags] [--libs] [--static-libs]"

if test $# -eq 0; then
      echo "${usage}" 1>&2
      exit 1
fi

while test $# -gt 0; do
  case "$1" in
  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) optarg= ;;
  esac

  case $1 in
    --prefix=*)
      prefix=$optarg
      if test $exec_prefix_set = no ; then
        exec_prefix=$optarg
      fi
      ;;
    --prefix)
      echo $prefix
      ;;
    --exec-prefix=*)
      exec_prefix=$optarg
      exec_prefix_set=yes
      ;;
    --exec-prefix)
      echo $exec_prefix
      ;;
    --version)
      echo @SDL_VERSION@
      ;;
    --cflags)
      echo -I@includedir@/SDL @SDL_CFLAGS@
      ;;
@ENABLE_SHARED_TRUE@    --libs)
@ENABLE_SHARED_TRUE@      libdirs="-L@libdir@ @SDL_RLD_FLAGS@"
@ENABLE_SHARED_TRUE@      echo $libdirs @SDL_LIBS@ @SHARED_SYSTEM_LIBS@
@ENABLE_SHARED_TRUE@      ;;
@ENABLE_STATIC_TRUE@@ENABLE_SHARED_TRUE@    --static-libs)
@ENABLE_STATIC_TRUE@@ENABLE_SHARED_FALSE@    --libs|--static-libs)
@ENABLE_STATIC_TRUE@      libdirs="-L@libdir@ @SDL_RLD_FLAGS@"
@ENABLE_STATIC_TRUE@      echo $libdirs @SDL_STATIC_LIBS@ @STATIC_SYSTEM_LIBS@
@ENABLE_STATIC_TRUE@      ;;
    *)
      echo "${usage}" 1>&2
      exit 1
      ;;
  esac
  shift
done